1. Round | 29/08/1998 | Real Zaragoza | - | Athletic Bilbao | 2:0 | ||||
3. Round | 19/09/1998 | CF Extremadura | - | Athletic Bilbao | 0:1 | ||||
4. Round | 25/09/1998 | Athletic Bilbao | - | Real Madrid | 2:3 | ||||
5. Round | 03/10/1998 | RC Celta | - | Athletic Bilbao | 3:2 | ||||
7. Round | 24/10/1998 | UD Salamanca | - | Athletic Bilbao | 2:1 | ||||
10. Round | 14/11/1998 | Athletic Bilbao | - | Real Oviedo | 3:5 | ||||
12. Round | 28/11/1998 | Athletic Bilbao | - | RCD Mallorca | 1:0 | ||||
14. Round | 12/12/1998 | Athletic Bilbao | - | Deportivo La Coruña | 2:1 | ||||
21. Round | 06/02/1999 | Racing Santander | - | Athletic Bilbao | 2:0 | ||||
23. Round | 19/02/1999 | Real Madrid | - | Athletic Bilbao | 0:1 | ||||
25. Round | 06/03/1999 | Valencia CF | - | Athletic Bilbao | 4:1 | ||||
29. Round | 10/04/1999 | Real Oviedo | - | Athletic Bilbao | 0:0 | ||||
30. Round | 17/04/1999 | Athletic Bilbao | - | CD Tenerife | 2:0 | ||||
31. Round | 24/04/1999 | RCD Mallorca | - | Athletic Bilbao | 6:1 | ||||
32. Round | 01/05/1999 | Athletic Bilbao | - | Atlético Madrid | 1:2 |